I guess I understand the OP's point. As a personal example, we read the crucifixion to our children, and I have shown them a cartoon version, that made my then 8-year old cry. I still won't show the 10-year old the Passion of the Christ. Also, I'd probably hesitate sharing the story of the sister who was raped, followed by the brothers convincing the offending family (and tribe) to submit to circumcision, after which they proceeded to annihilate them. Maybe when they are about 12 on that one.
On the other hand, I must confess I thought the original point was to poke at the Church's cautions towards R-rated movies etc. Never imagined he really wanted to sanitize the Scriptures for the little ones. The reality is, we do tend to do so...not sure what the controversy really is here.
"Power tends to corrupt, and absolute power corrupts absolutely." -- Lord Acton